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/* Copyright 2019 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Renesas (Intersil) ISL-9241 battery charger driver header.
*/
#ifndef __CROS_EC_ISL9241_H
#define __CROS_EC_ISL9241_H
#include "driver/charger/isl9241_public.h"
#define CHARGER_NAME "ISL9241"
#define CHARGE_V_MAX 18304
#define CHARGE_V_MIN 64
#define CHARGE_V_STEP 8
#define CHARGE_I_MAX 6140
#define CHARGE_I_MIN 4
#define CHARGE_I_STEP 4
#define INPUT_I_MAX 6140
#define INPUT_I_MIN 4
#define INPUT_I_STEP 4
/* Registers */
/*
* ChargeCurrentLimit [12:2] 11-bit (0x0000h = disables fast charging,
* trickle charging is allowed)
*/
#define ISL9241_REG_CHG_CURRENT_LIMIT 0x14
/* MaxSystemVoltage [14:3] 12-bit, (0x0000h = disables switching) */
#define ISL9241_REG_MAX_SYSTEM_VOLTAGE 0x15
#define ISL9241_REG_CONTROL7 0x38
/* Configures various charger options */
#define ISL9241_REG_CONTROL0 0x39
/* 2: Input Voltage Regulation (0 = Enable (default), 1 = Disable) */
#define ISL9241_CONTROL0_INPUT_VTG_REGULATION BIT(2)
#define ISL9241_REG_INFORMATION1 0x3A
#define ISL9241_REG_ADAPTER_CUR_LIMIT2 0x3B
/* Configures various charger options */
#define ISL9241_REG_CONTROL1 0x3C
#define ISL9241_CONTROL1_PSYS BIT(3)
#define ISL9241_CONTROL1_LEARN_MODE BIT(12)
/*
* 9:7 - Switching Frequency
*/
#define ISL9241_CONTROL1_SWITCHING_FREQ_MASK 0x380
#define ISL9241_CONTROL1_SWITCHING_FREQ_1420KHZ 0
#define ISL9241_CONTROL1_SWITCHING_FREQ_1180KHZ 1
#define ISL9241_CONTROL1_SWITCHING_FREQ_1020KHZ 2
#define ISL9241_CONTROL1_SWITCHING_FREQ_890KHZ 3
#define ISL9241_CONTROL1_SWITCHING_FREQ_808KHZ 4
#define ISL9241_CONTROL1_SWITCHING_FREQ_724KHZ 5
#define ISL9241_CONTROL1_SWITCHING_FREQ_656KHZ 6
#define ISL9241_CONTROL1_SWITCHING_FREQ_600KHZ 7
/* Configures various charger options */
#define ISL9241_REG_CONTROL2 0x3D
/*
* 15:13 - Trickle Charging Current
* <000> 32mA (do not use)
* <001> 64mA
* <010> 96mA
* <011> 128mA (default)
* <100> 160mA
* <101> 192mA
* <110> 224mA
* <111> 256mA
*/
#define ISL9241_CONTROL2_TRICKLE_CHG_CURR(curr) ((((curr) >> 5) - 1) << 13)
/* 12 - Two-Level Adapter Current Limit */
#define ISL9241_CONTROL2_TWO_LEVEL_ADP_CURR BIT(12)
/* 10:9 PROCHOT# debounce time in uS */
#define ISL9241_CONTROL2_PROCHOT_DEBOUNCE_MASK GENMASK(10, 9)
#define ISL9241_CONTROL2_PROCHOT_DEBOUNCE_500 (2 << 9)
#define ISL9241_CONTROL2_PROCHOT_DEBOUNCE_1000 (3 << 9)
/* MinSystemVoltage [13:6] 8-bit (0x0000h = disables all battery charging) */
#define ISL9241_REG_MIN_SYSTEM_VOLTAGE 0x3E
#define ISL9241_REG_ADAPTER_CUR_LIMIT1 0x3F
#define ISL9241_REG_ACOK_REFERENCE 0x40
#define ISL9241_REG_CONTROL6 0x43
#define ISL9241_REG_AC_PROCHOT 0x47
#define ISL9241_REG_DC_PROCHOT 0x48
#define ISL9241_REG_OTG_VOLTAGE 0x49
#define ISL9241_REG_OTG_CURRENT 0x4A
/* VIN Voltage (ADP Min Voltage) (default 4.096V) */
#define ISL9241_REG_VIN_VOLTAGE 0x4B
/* Configures various charger options */
#define ISL9241_REG_CONTROL3 0x4C
/* 14: ACLIM Reload (0 - reload, 1 - Do not reload */
#define ISL9241_CONTROL3_ACLIM_RELOAD BIT(14)
/* 2: Digital Reset (0 - Idle, 1 - Reset */
#define ISL9241_CONTROL3_DIGITAL_RESET BIT(2)
/* 0: Enable ADC (0 - Active when charging, 1 - Active always) */
#define ISL9241_CONTROL3_ENABLE_ADC BIT(0)
/* Indicates various charger status */
#define ISL9241_REG_INFORMATION2 0x4D
/* 12: BATGONE pin status (0 = Battery is present, 1 = No battery) */
#define ISL9241_INFORMATION2_BATGONE_PIN BIT(12)
/* 14: ACOK pin status (0 = No adapter, 1 = Adapter is present) */
#define ISL9241_INFORMATION2_ACOK_PIN BIT(14)
#define ISL9241_REG_CONTROL4 0x4E
/* 11: Rsense (Rs1:Rs2) ratio for PSYS (0 - 2:1, 1 - 1:1) */
#define ISL9241_CONTROL4_PSYS_RSENSE_RATIO BIT(11)
/* 13: Enable VSYS slew rate control (0 - disable, 1 - enable) */
#define ISL9241_CONTROL4_SLEW_RATE_CTRL BIT(13)
#define ISL9241_REG_CONTROL5 0x4F
#define ISL9241_REG_NTC_ADC_RESULTS 0x80
#define ISL9241_REG_VBAT_ADC_RESULTS 0x81
#define ISL9241_REG_TJ_ADC_RESULTS 0x82
/* ADC result for adapter current measurements, LSB = 22.2mA */
#define ISL9241_REG_IADP_ADC_RESULTS 0x83
#define ISL9241_REG_DC_ADC_RESULTS 0x84
#define ISL9241_REG_CC_ADC_RESULTS 0x85
#define ISL9241_REG_VSYS_ADC_RESULTS 0x86
#define ISL9241_REG_VIN_ADC_RESULTS 0x87
#define ISL9241_REG_INFORMATION3 0x90
#define ISL9241_REG_INFORMATION4 0x91
#define ISL9241_REG_MANUFACTURER_ID 0xFE
#define ISL9241_REG_DEVICE_ID 0xFF
#define ISL9241_VIN_ADC_BIT_OFFSET 6
#define ISL9241_VIN_ADC_STEP_MV 96
#endif /* __CROS_EC_ISL9241_H */
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